sensor cleaning routine for a photographer should be a process that we were as familiar as with the change of a target on the other.
Some say even that should be cleaned every 15 days. If one does not photograph all the time, could be excessive.
The sensor is a delicate part of the camera, like it or not, the end is exposed to dirt. Each time we change the goal we run the risk of dust or strain on it undesirable.
If we have a clear sky, we just have to take our camera, close the diaphragm (using a number "f" tall, 22 or older), focus on infinity and take some pictures to heaven.
To focus to infinity probably have to put the camera in manual focus mode and make the focus of the lens.
doing a picture of a blue sky should get a picture of a tone (almost) uniform. If the sensor is dirty, when reviewing the picture on our screen we see an occasional dark spot.
can also use a magnifying glass to detect the dreaded spots on the screen of your camera. now depends on your level of requirement to decide whether the sensor needs cleaning.
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